/*
 * Copyright Java Operator SDK Authors
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *         http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package io.javaoperatorsdk.operator.processing.event.source.filter;

@FunctionalInterface
public interface OnUpdateFilter<R> {

  boolean accept(R newResource, R oldResource);

  default OnUpdateFilter<R> and(OnUpdateFilter<R> onUpdateFilter) {
    return (newResource, oldResource) ->
        this.accept(newResource, oldResource) && onUpdateFilter.accept(newResource, oldResource);
  }

  default OnUpdateFilter<R> or(OnUpdateFilter<R> onUpdateFilter) {
    return (newResource, oldResource) ->
        this.accept(newResource, oldResource) || onUpdateFilter.accept(newResource, oldResource);
  }

  default OnUpdateFilter<R> not() {
    return (newResource, oldResource) -> !this.accept(newResource, oldResource);
  }
}
